Home > Kids and Teens > School Time > Science > Environment > Acid Rain
Acid rain is caused when certain chemicals are released into the atmosphere, chemically react, and fall as rain or snow. Acid rain has a pH that is much lower than normal rainwater. pH measures if a substance is an acid or a base.
http://en.wikipedia.org/wiki/Acid_rain
The history of acid rain, why it occurs, and how it can be prevented.
Home > Kids and Teens > School Time > Science > Environment > Acid Rain
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